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| Mirrors > Home > MPE Home > Th. List > elrab3 | Structured version Visualization version GIF version | ||
| Description: Membership in a restricted class abstraction, using implicit substitution. (Contributed by NM, 5-Oct-2006.) |
| Ref | Expression |
|---|---|
| elrab.1 | ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓)) |
| Ref | Expression |
|---|---|
| elrab3 | ⊢ (𝐴 ∈ 𝐵 → (𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜑} ↔ 𝜓)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elrab.1 | . . 3 ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓)) | |
| 2 | 1 | elrab 3645 | . 2 ⊢ (𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜑} ↔ (𝐴 ∈ 𝐵 ∧ 𝜓)) |
| 3 | 2 | baib 545 | 1 ⊢ (𝐴 ∈ 𝐵 → (𝐴 ∈ {𝑥 ∈ 𝐵 ∣ 𝜑} ↔ 𝜓)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 = wceq 1570 ∈ wcel 2145 {crab 3413 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2733 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2740 df-cleq 2753 df-clel 2836 df-rab 3414 df-v 3453 |
| This theorem is used by: unimax 4905 fnelfp 7178 fnelnfp 7180 fnse 8143 fin23lem30 10413 isf32lem5 10428 negn0 11738 ublbneg 13053 supminf 13055 sadval 16619 smuval 16644 dvdslcm 16766 dvdslcmf 16799 isprm2lem 16849 isacs1i 17824 isinito 18164 istermo 18165 subgacs 19364 nsgacs 19365 odngen 19784 sdrgacs 21051 lssacs 21235 ssdifidllem 21633 mretopd 23403 txkgen 23964 xkoco1cn 23969 xkoco2cn 23970 xkoinjcn 23999 ordthmeolem 24113 shft2rab 25822 sca2rab 25826 lhop1lem 26326 ftalem5 27397 vmasum 27536 eqcuts2 28165 elmade 28236 addonbday 28658 israg 29165 ebtwntg 29553 eupth2lem3lem3 30824 eupth2lem3lem4 30825 eupth2lem3lem6 30827 cycpmco2lem1 33680 cycpmco2lem4 33683 cycpmco2 33687 1arithufdlem2 34070 tgoldbachgt 35285 cvmliftmolem1 36025 nmulr0 36924 neibastop3 37130 fdc 38659 pclvalN 40927 dvhb1dimN 42023 hdmaplkr 42950 aks4d1p8 43117 sticksstones1 43176 fsuppssind 43601 diophren 43799 islmodfg 44055 fsovcnvlem 44998 ntrneiel 45066 radcnvrat 45283 supminfxr 46443 stoweidlem34 47013 |
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